ENH: add return and break support to cmake, also change basic command invocation signature to be able to return extra informaiton via the cmExecutionStatus class

Source/CTest/cmCTestEmptyBinaryDirectoryCommand.cxx

@@ -18,8 +18,8 @@
 
 #include "cmCTestScriptHandler.h"
 
-bool cmCTestEmptyBinaryDirectoryCommand::InitialPass(
-  std::vector<std::string> const& args)
+bool cmCTestEmptyBinaryDirectoryCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() != 1 )
     {

Source/CTest/cmCTestEmptyBinaryDirectoryCommand.h

@@ -47,7 +47,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/CTest/cmCTestHandlerCommand.cxx

@@ -35,8 +35,8 @@ cmCTestHandlerCommand::cmCTestHandlerCommand()
   this->Last = ct_LAST;
 }
 
-bool cmCTestHandlerCommand::InitialPass(
-  std::vector<std::string> const& args)
+bool cmCTestHandlerCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if ( !this->ProcessArguments(args, (unsigned int)this->Last, 
                                &*this->Arguments.begin(),this->Values) )

Source/CTest/cmCTestHandlerCommand.h

@@ -35,7 +35,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   cmTypeMacro(cmCTestHandlerCommand, cmCTestCommand);
 

Source/CTest/cmCTestReadCustomFilesCommand.cxx

@@ -18,8 +18,8 @@
 
 #include "cmCTest.h"
 
-bool cmCTestReadCustomFilesCommand::InitialPass(
-  std::vector<std::string> const& args)
+bool cmCTestReadCustomFilesCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if (args.size() < 1)
     {

Source/CTest/cmCTestReadCustomFilesCommand.h

@@ -45,7 +45,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/CTest/cmCTestRunScriptCommand.cxx

@@ -18,8 +18,8 @@
 
 #include "cmCTestScriptHandler.h"
 
-bool cmCTestRunScriptCommand::InitialPass(
-  std::vector<std::string> const& args)
+bool cmCTestRunScriptCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 1 )
     {

Source/CTest/cmCTestRunScriptCommand.h

@@ -46,7 +46,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/CTest/cmCTestScriptHandler.cxx

@@ -65,7 +65,8 @@ public:
   cmCTestScriptFunctionBlocker() {}
   virtual ~cmCTestScriptFunctionBlocker() {}
   virtual bool IsFunctionBlocked(const cmListFileFunction& lff,
-                                 cmMakefile &mf);
+                                 cmMakefile &mf,
+                                 cmExecutionStatus &);
   //virtual bool ShouldRemove(const cmListFileFunction& lff, cmMakefile &mf);
   //virtual void ScopeEnded(cmMakefile &mf);
 
@@ -74,7 +75,8 @@ public:
 
 // simply update the time and don't block anything
 bool cmCTestScriptFunctionBlocker::
-IsFunctionBlocked(const cmListFileFunction& , cmMakefile &)
+IsFunctionBlocked(const cmListFileFunction& , cmMakefile &,
+                  cmExecutionStatus &)
 {
   this->CTestScriptHandler->UpdateElapsedTime();
   return false;

Source/CTest/cmCTestSleepCommand.cxx

@@ -19,8 +19,8 @@
 #include "cmCTestScriptHandler.h"
 #include <stdlib.h> // required for atoi
 
-bool cmCTestSleepCommand::InitialPass(
-  std::vector<std::string> const& args)
+bool cmCTestSleepCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if (args.size() < 1)
     {

Source/CTest/cmCTestSleepCommand.h

@@ -46,7 +46,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/CTest/cmCTestStartCommand.cxx

@@ -20,8 +20,8 @@
 #include "cmLocalGenerator.h"
 #include "cmGlobalGenerator.h"
 
-bool cmCTestStartCommand::InitialPass(
-  std::vector<std::string> const& args)
+bool cmCTestStartCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if (args.size() < 1)
     {

Source/CTest/cmCTestStartCommand.h

@@ -45,7 +45,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/CTest/cmCTestTestHandler.cxx

@@ -53,7 +53,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &);
 
   /**
    * The name of the command as specified in CMakeList.txt.
@@ -70,7 +71,8 @@ public:
 };
 
 //----------------------------------------------------------------------
-bool cmCTestSubdirCommand::InitialPass(std::vector<std::string> const& args)
+bool cmCTestSubdirCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 1 )
     {
@@ -139,7 +141,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &);
 
   /**
    * The name of the command as specified in CMakeList.txt.
@@ -157,7 +160,7 @@ public:
 
 //----------------------------------------------------------------------
 bool cmCTestAddSubdirectoryCommand
-::InitialPass(std::vector<std::string> const& args)
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 1 )
     {
@@ -223,7 +226,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const&);
+  virtual bool InitialPass(std::vector<std::string> const&,
+                           cmExecutionStatus &);
 
   /**
    * The name of the command as specified in CMakeList.txt.
@@ -240,7 +244,8 @@ public:
 };
 
 //----------------------------------------------------------------------
-bool cmCTestAddTestCommand::InitialPass(std::vector<std::string> const& args)
+bool cmCTestAddTestCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if ( args.size() < 2 )
     {
@@ -268,8 +273,9 @@ public:
   /**
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
-   */
-  virtual bool InitialPass(std::vector<std::string> const&);
+  */
+  virtual bool InitialPass(std::vector<std::string> const&,
+                           cmExecutionStatus &);
 
   /**
    * The name of the command as specified in CMakeList.txt.
@@ -286,8 +292,8 @@ public:
 };
 
 //----------------------------------------------------------------------
-bool cmCTestSetTestsPropertiesCommand::InitialPass(
-  std::vector<std::string> const& args)
+bool cmCTestSetTestsPropertiesCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   return this->TestHandler->SetTestsProperties(args);
 }

Source/cmAddCustomCommandCommand.cxx

@@ -21,8 +21,8 @@
 #include "cmSourceFile.h"
 
 // cmAddCustomCommandCommand
-bool cmAddCustomCommandCommand::InitialPass(
-  std::vector<std::string> const& args)
+bool cmAddCustomCommandCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   /* Let's complain at the end of this function about the lack of a particular
      arg. For the moment, let's say that COMMAND, and either TARGET or SOURCE

Source/cmAddCustomCommandCommand.h

@@ -42,7 +42,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/cmAddCustomTargetCommand.cxx

@@ -17,8 +17,8 @@
 #include "cmAddCustomTargetCommand.h"
 
 // cmAddCustomTargetCommand
-bool cmAddCustomTargetCommand::InitialPass(
-  std::vector<std::string> const& args)
+bool cmAddCustomTargetCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 1 )
     {

Source/cmAddCustomTargetCommand.h

@@ -41,7 +41,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
   
   /**
    * The name of the command as specified in CMakeList.txt.

Source/cmAddDefinitionsCommand.cxx

@@ -17,8 +17,8 @@
 #include "cmAddDefinitionsCommand.h"
 
 // cmAddDefinitionsCommand
-bool cmAddDefinitionsCommand::InitialPass(
-  std::vector<std::string> const& args)
+bool cmAddDefinitionsCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   // it is OK to have no arguments
   if(args.size() < 1 )

Source/cmAddDefinitionsCommand.h

@@ -40,7 +40,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/cmAddDependenciesCommand.cxx

@@ -19,8 +19,8 @@
 #include "cmGlobalGenerator.h"
 
 // cmDependenciesCommand
-bool cmAddDependenciesCommand::InitialPass(
-  std::vector<std::string> const& args)
+bool cmAddDependenciesCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 2 )
     {

Source/cmAddDependenciesCommand.h

@@ -39,7 +39,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/cmAddExecutableCommand.cxx

@@ -17,7 +17,8 @@
 #include "cmAddExecutableCommand.h"
 
 // cmExecutableCommand
-bool cmAddExecutableCommand::InitialPass(std::vector<std::string> const& args)
+bool cmAddExecutableCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 2 )
     {

Source/cmAddExecutableCommand.h

@@ -40,7 +40,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/cmAddLibraryCommand.cxx

@@ -19,7 +19,8 @@
 #include "cmake.h"
 
 // cmLibraryCommand
-bool cmAddLibraryCommand::InitialPass(std::vector<std::string> const& args)
+bool cmAddLibraryCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 1 )
     {

Source/cmAddLibraryCommand.h

@@ -40,7 +40,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/cmAddSubDirectoryCommand.cxx

@@ -18,7 +18,7 @@
 
 // cmAddSubDirectoryCommand
 bool cmAddSubDirectoryCommand::InitialPass
-(std::vector<std::string> const& args)
+(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 1 )
     {

Source/cmAddSubDirectoryCommand.h

@@ -41,7 +41,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/cmAddTestCommand.cxx

@@ -20,7 +20,8 @@
 
 
 // cmExecutableCommand
-bool cmAddTestCommand::InitialPass(std::vector<std::string> const& args)
+bool cmAddTestCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   // First argument is the name of the test Second argument is the name of
   // the executable to run (a target or external program) Remaining arguments

Source/cmAddTestCommand.h

@@ -39,7 +39,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/cmAuxSourceDirectoryCommand.cxx

@@ -21,7 +21,7 @@
 
 // cmAuxSourceDirectoryCommand
 bool cmAuxSourceDirectoryCommand::InitialPass
-(std::vector<std::string> const& args)
+(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 2 || args.size() > 2)
     {

Source/cmAuxSourceDirectoryCommand.h

@@ -43,7 +43,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/cmBootstrapCommands.cxx

@@ -27,6 +27,7 @@
 #include "cmAddLibraryCommand.cxx"
 #include "cmAddSubDirectoryCommand.cxx"
 #include "cmAddTestCommand.cxx"
+#include "cmBreakCommand.cxx"
 #include "cmBuildCommand.cxx"
 #include "cmCMakeMinimumRequired.cxx"
 #include "cmCommandArgumentsHelper.cxx"
@@ -70,6 +71,7 @@
 #include "cmMessageCommand.cxx"
 #include "cmOptionCommand.cxx"
 #include "cmProjectCommand.cxx"
+#include "cmReturnCommand.cxx"
 #include "cmSetCommand.cxx"
 #include "cmSetPropertyCommand.cxx"
 #include "cmSetSourceFilesPropertiesCommand.cxx"
@@ -92,6 +94,7 @@ void GetBootstrapCommands(std::list<cmCommand*>& commands)
   commands.push_back(new cmAddLibraryCommand);
   commands.push_back(new cmAddSubDirectoryCommand);
   commands.push_back(new cmAddTestCommand);
+  commands.push_back(new cmBreakCommand);
   commands.push_back(new cmBuildCommand);
   commands.push_back(new cmCMakeMinimumRequired);
   commands.push_back(new cmConfigureFileCommand);
@@ -129,6 +132,7 @@ void GetBootstrapCommands(std::list<cmCommand*>& commands)
   commands.push_back(new cmMessageCommand);
   commands.push_back(new cmOptionCommand);
   commands.push_back(new cmProjectCommand);
+  commands.push_back(new cmReturnCommand);
   commands.push_back(new cmSetCommand);
   commands.push_back(new cmSetPropertyCommand);
   commands.push_back(new cmSetSourceFilesPropertiesCommand);

Source/cmBreakCommand.cxx

@@ -0,0 +1,26 @@
+/*=========================================================================
+
+  Program:   CMake - Cross-Platform Makefile Generator
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
+  See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even 
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#include "cmBreakCommand.h"
+
+// cmBreakCommand
+bool cmBreakCommand::InitialPass(std::vector<std::string> const&,
+                                  cmExecutionStatus &status)
+{
+  status.SetBreakInvoked(true);
+  return true;
+}
+

Source/cmBreakCommand.h

@@ -0,0 +1,78 @@
+/*=========================================================================
+
+  Program:   CMake - Cross-Platform Makefile Generator
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
+  See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even 
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#ifndef cmBreakCommand_h
+#define cmBreakCommand_h
+
+#include "cmCommand.h"
+
+/** \class cmBreakCommand
+ * \brief Break from an enclosing foreach or while loop
+ *
+ * cmBreakCommand returns from an enclosing foreach or while loop
+ */
+class cmBreakCommand : public cmCommand
+{
+public:
+  /**
+   * This is a virtual constructor for the command.
+   */
+  virtual cmCommand* Clone() 
+    {
+    return new cmBreakCommand;
+    }
+
+  /**
+   * This is called when the command is first encountered in
+   * the CMakeLists.txt file.
+   */
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
+
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  virtual bool IsScriptable() { return true; }
+
+  /**
+   * The name of the command as specified in CMakeList.txt.
+   */
+  virtual const char* GetName() {return "break";}
+  
+  /**
+   * Succinct documentation.
+   */
+  virtual const char* GetTerseDocumentation() 
+    {
+    return "Break from an enclosing foreach or while loop.";
+    }
+  
+  /**
+   * More documentation.
+   */
+  virtual const char* GetFullDocumentation()
+    {
+    return
+      "  break()\n"
+      "Breaks from an enclosing foreach loop or while loop";
+    }
+  
+  cmTypeMacro(cmBreakCommand, cmCommand);
+};
+
+
+
+#endif

Source/cmBuildCommand.cxx

@@ -20,7 +20,8 @@
 #include "cmGlobalGenerator.h"
 
 // cmBuildCommand
-bool cmBuildCommand::InitialPass(std::vector<std::string> const& args)
+bool cmBuildCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 2 )
     {

Source/cmBuildCommand.h

@@ -39,7 +39,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/cmBuildNameCommand.cxx

@@ -19,7 +19,8 @@
 #include <cmsys/RegularExpression.hxx>
 
 // cmBuildNameCommand
-bool cmBuildNameCommand::InitialPass(std::vector<std::string> const& args)
+bool cmBuildNameCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 1 )
     {

Source/cmBuildNameCommand.h

@@ -39,7 +39,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmCMakeMinimumRequired.cxx

@@ -19,7 +19,8 @@
 #include "cmVersion.h"
 
 // cmCMakeMinimumRequired
-bool cmCMakeMinimumRequired::InitialPass(std::vector<std::string> const& args)
+bool cmCMakeMinimumRequired
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   // Process arguments.
   std::string version_string;

Source/cmCMakeMinimumRequired.h

@@ -39,7 +39,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmCPluginAPI.cxx

@@ -430,7 +430,8 @@ int CCONV cmExecuteCommand(void *arg, const char *name,
     lff.Arguments.push_back(cmListFileArgument(args[i], true,
                                                "[CMake-Plugin]", 0));
     }
-  return mf->ExecuteCommand(lff);
+  cmExecutionStatus status;
+  return mf->ExecuteCommand(lff,status);
 }
 
 void CCONV cmExpandSourceListArguments(void *arg,

Source/cmCommand.h

@@ -60,18 +60,20 @@ public:
    * encountered in the CMakeLists.txt file.  It expands the command's
    * arguments and then invokes the InitialPass.
    */
-  virtual bool InvokeInitialPass(const std::vector<cmListFileArgument>& args)
+  virtual bool InvokeInitialPass(const std::vector<cmListFileArgument>& args,
+                                 cmExecutionStatus &status)
     {
     std::vector<std::string> expandedArguments;
     this->Makefile->ExpandArguments(args, expandedArguments);
-    return this->InitialPass(expandedArguments);
+    return this->InitialPass(expandedArguments,status);
     }
 
   /**
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args) = 0;
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &) = 0;
 
   /**
    * This is called at the end after all the information

Source/cmConfigureFileCommand.cxx

@@ -19,7 +19,8 @@
 #include <cmsys/RegularExpression.hxx>
 
 // cmConfigureFileCommand
-bool cmConfigureFileCommand::InitialPass(std::vector<std::string> const& args)
+bool cmConfigureFileCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 2 )
     {

Source/cmConfigureFileCommand.h

@@ -33,7 +33,8 @@ public:
    * This is called when the command is first encountered in
    * the input file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/cmCreateTestSourceList.cxx

@@ -18,7 +18,8 @@
 #include "cmSourceFile.h"
 
 // cmCreateTestSourceList
-bool cmCreateTestSourceList::InitialPass(std::vector<std::string> const& args)
+bool cmCreateTestSourceList
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if (args.size() < 3)
     {

Source/cmCreateTestSourceList.h

@@ -39,7 +39,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/cmDefinePropertyCommand.cxx

@@ -18,8 +18,8 @@
 #include "cmake.h"
 
 // cmDefinePropertiesCommand
-bool cmDefinePropertyCommand::InitialPass(
-  std::vector<std::string> const& args)
+bool cmDefinePropertyCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 5 )
     {

Source/cmDefinePropertyCommand.h

@@ -31,7 +31,8 @@ public:
    * This is called when the command is first encountered in
    * the input file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/cmElseCommand.cxx

@@ -16,7 +16,8 @@
 =========================================================================*/
 #include "cmElseCommand.h"
 
-bool cmElseCommand::InitialPass(std::vector<std::string> const&)
+bool cmElseCommand::InitialPass(std::vector<std::string> const&,
+                                cmExecutionStatus &)
 {
   this->SetError("An ELSE command was found outside of a proper "
                  "IF ENDIF structure. Or its arguments did not match "

Source/cmElseCommand.h

@@ -39,7 +39,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmElseIfCommand.cxx

@@ -16,7 +16,8 @@
 =========================================================================*/
 #include "cmElseIfCommand.h"
 
-bool cmElseIfCommand::InitialPass(std::vector<std::string> const&)
+bool cmElseIfCommand::InitialPass(std::vector<std::string> const&,
+                                  cmExecutionStatus &)
 {
   this->SetError("An ELSEIF command was found outside of a proper "
                  "IF ENDIF structure.");

Source/cmElseIfCommand.h

@@ -39,7 +39,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmEnableLanguageCommand.cxx

@@ -18,7 +18,7 @@
 
 // cmEnableLanguageCommand
 bool cmEnableLanguageCommand
-::InitialPass(std::vector<std::string> const& args)
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   bool optional = false;
   std::vector<std::string> languages;

Source/cmEnableLanguageCommand.h

@@ -42,7 +42,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
   
   /**
    * The name of the command as specified in CMakeList.txt.

Source/cmEnableTestingCommand.cxx

@@ -19,7 +19,8 @@
 
 // we do this in the final pass so that we now the subdirs have all 
 // been defined
-bool cmEnableTestingCommand::InitialPass(std::vector<std::string> const&)
+bool cmEnableTestingCommand::InitialPass(std::vector<std::string> const&,
+                                         cmExecutionStatus &)
 {
   this->Makefile->AddDefinition("CMAKE_TESTING_ENABLED","1");
   return true;

Source/cmEnableTestingCommand.h

@@ -47,7 +47,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const&);
+  virtual bool InitialPass(std::vector<std::string> const&,
+                           cmExecutionStatus &);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/cmEndForEachCommand.cxx

@@ -17,7 +17,8 @@
 #include "cmEndForEachCommand.h"
 
 bool cmEndForEachCommand
-::InvokeInitialPass(std::vector<cmListFileArgument> const&)
+::InvokeInitialPass(std::vector<cmListFileArgument> const&, 
+                    cmExecutionStatus &)
 {
   this->SetError("An ENDFOREACH command was found outside of a proper "
                  "FOREACH ENDFOREACH structure. Or its arguments did "

Source/cmEndForEachCommand.h

@@ -39,13 +39,15 @@ public:
    * Override cmCommand::InvokeInitialPass to get arguments before
    * expansion.
    */
-  virtual bool InvokeInitialPass(std::vector<cmListFileArgument> const&);
+  virtual bool InvokeInitialPass(std::vector<cmListFileArgument> const&,
+                                 cmExecutionStatus &);
   
   /**
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const&) {return false;}
+  virtual bool InitialPass(std::vector<std::string> const&,
+                           cmExecutionStatus &) {return false;}
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmEndFunctionCommand.cxx

@@ -17,7 +17,8 @@
 #include "cmEndFunctionCommand.h"
 
 bool cmEndFunctionCommand
-::InvokeInitialPass(std::vector<cmListFileArgument> const&)
+::InvokeInitialPass(std::vector<cmListFileArgument> const&,
+                    cmExecutionStatus &)
 {
   this->SetError("An ENDFUNCTION command was found outside of a proper "
                  "FUNCTION ENDFUNCTION structure. Or its arguments did not "

Source/cmEndFunctionCommand.h

@@ -39,13 +39,15 @@ public:
    * Override cmCommand::InvokeInitialPass to get arguments before
    * expansion.
    */
-  virtual bool InvokeInitialPass(std::vector<cmListFileArgument> const&);
+  virtual bool InvokeInitialPass(std::vector<cmListFileArgument> const&,
+                                 cmExecutionStatus &);
   
   /**
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const&) {return false;}
+  virtual bool InitialPass(std::vector<std::string> const&,
+                           cmExecutionStatus &) {return false;}
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmEndIfCommand.cxx

@@ -16,7 +16,8 @@
 =========================================================================*/
 #include "cmEndIfCommand.h"
 #include <stdlib.h> // required for atof
-bool cmEndIfCommand::InitialPass(std::vector<std::string> const&)
+bool cmEndIfCommand::InitialPass(std::vector<std::string> const&,
+                                 cmExecutionStatus &)
 {
   const char* versionValue
     = this->Makefile->GetDefinition("CMAKE_MINIMUM_REQUIRED_VERSION");

Source/cmEndIfCommand.h

@@ -39,7 +39,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmEndMacroCommand.cxx

@@ -17,7 +17,8 @@
 #include "cmEndMacroCommand.h"
 
 bool cmEndMacroCommand
-::InvokeInitialPass(std::vector<cmListFileArgument> const&)
+::InvokeInitialPass(std::vector<cmListFileArgument> const&,
+                    cmExecutionStatus &)
 {
   this->SetError("An ENDMACRO command was found outside of a proper "
                  "MACRO ENDMACRO structure. Or its arguments did not "

Source/cmEndMacroCommand.h

@@ -39,13 +39,15 @@ public:
    * Override cmCommand::InvokeInitialPass to get arguments before
    * expansion.
    */
-  virtual bool InvokeInitialPass(std::vector<cmListFileArgument> const&);
+  virtual bool InvokeInitialPass(std::vector<cmListFileArgument> const&,
+                                 cmExecutionStatus &);
   
   /**
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const&) {return false;}
+  virtual bool InitialPass(std::vector<std::string> const&,
+                           cmExecutionStatus &) {return false;}
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmEndWhileCommand.cxx

@@ -17,7 +17,8 @@
 #include "cmEndWhileCommand.h"
 
 bool cmEndWhileCommand
-::InvokeInitialPass(std::vector<cmListFileArgument> const&)
+::InvokeInitialPass(std::vector<cmListFileArgument> const&,
+                    cmExecutionStatus &)
 {
   this->SetError("An ENDWHILE command was found outside of a proper "
                  "WHILE ENDWHILE structure. Or its arguments did not "

Source/cmEndWhileCommand.h

@@ -39,13 +39,15 @@ public:
    * Override cmCommand::InvokeInitialPass to get arguments before
    * expansion.
    */
-  virtual bool InvokeInitialPass(std::vector<cmListFileArgument> const&);
+  virtual bool InvokeInitialPass(std::vector<cmListFileArgument> const&,
+                                 cmExecutionStatus &status);
   
   /**
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const&) {return false;}
+  virtual bool InitialPass(std::vector<std::string> const&,
+                           cmExecutionStatus &) {return false;}
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmExecProgramCommand.cxx

@@ -18,7 +18,8 @@
 #include "cmSystemTools.h"
 
 // cmExecProgramCommand
-bool cmExecProgramCommand::InitialPass(std::vector<std::string> const& args)
+bool cmExecProgramCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 1 )
     {

Source/cmExecProgramCommand.h

@@ -41,7 +41,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
   
   /**
    * The name of the command as specified in CMakeList.txt.

Source/cmExecuteProcessCommand.cxx

@@ -33,7 +33,7 @@ void cmExecuteProcessCommandAppend(std::vector<char>& output,
 
 // cmExecuteProcessCommand
 bool cmExecuteProcessCommand
-::InitialPass(std::vector<std::string> const& args)
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 1 )
     {

Source/cmExecuteProcessCommand.h

@@ -40,7 +40,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/cmExecutionStatus.h

@@ -0,0 +1,53 @@
+/*=========================================================================
+
+  Program:   CMake - Cross-Platform Makefile Generator
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
+  See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even 
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#ifndef cmExecutionStatus_h
+#define cmExecutionStatus_h
+
+#include "cmObject.h"
+
+/** \class cmExecutionStatus
+ * \brief Superclass for all command status classes
+ *
+ * when a command is involked it may set values on a command status instance
+ */
+class cmExecutionStatus : public cmObject
+{
+public:
+  cmTypeMacro(cmExecutionStatus, cmObject);
+  
+  cmExecutionStatus() { this->Clear();};
+  
+  virtual void SetReturnInvoked(bool val) 
+  { this->ReturnInvoked = val; }
+  virtual bool GetReturnInvoked()
+  { return this->ReturnInvoked; }
+                                 
+  virtual void SetBreakInvoked(bool val) 
+  { this->BreakInvoked = val; }
+  virtual bool GetBreakInvoked()
+  { return this->BreakInvoked; }
+            
+  virtual void Clear()
+  { this->ReturnInvoked = false; this->BreakInvoked = false; }
+
+                                        
+protected:
+  bool ReturnInvoked;
+  bool BreakInvoked;
+};
+
+#endif

Source/cmExportCommand.cxx

@@ -39,7 +39,7 @@ cmExportCommand::cmExportCommand()
 
 // cmExportCommand
 bool cmExportCommand
-::InitialPass(std::vector<std::string> const& args)
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 2 )
     {

Source/cmExportCommand.h

@@ -41,7 +41,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * The name of the command as specified in CMakeList.txt.

Source/cmExportLibraryDependencies.cxx

@@ -23,7 +23,7 @@
 #include <cmsys/auto_ptr.hxx>
 
 bool cmExportLibraryDependenciesCommand
-::InitialPass(std::vector<std::string> const& args)
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 1 )
     {

Source/cmExportLibraryDependencies.h

@@ -40,7 +40,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * This is called at the end after all the information

Source/cmFLTKWrapUICommand.cxx

@@ -19,7 +19,8 @@
 #include "cmSourceFile.h"
 
 // cmFLTKWrapUICommand
-bool cmFLTKWrapUICommand::InitialPass(std::vector<std::string> const& args)
+bool cmFLTKWrapUICommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 2 )
     {

Source/cmFLTKWrapUICommand.h

@@ -42,7 +42,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
   
   /**
    * This is called at the end after all the information

Source/cmFileCommand.cxx

@@ -54,7 +54,8 @@ static mode_t mode_setgid = S_ISGID;
 #endif
 
 // cmLibraryCommand
-bool cmFileCommand::InitialPass(std::vector<std::string> const& args)
+bool cmFileCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 2 )
     {

Source/cmFileCommand.h

@@ -40,7 +40,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmFindLibraryCommand.cxx

@@ -55,7 +55,8 @@ cmFindLibraryCommand::cmFindLibraryCommand()
 }
 
 // cmFindLibraryCommand
-bool cmFindLibraryCommand::InitialPass(std::vector<std::string> const& argsIn)
+bool cmFindLibraryCommand
+::InitialPass(std::vector<std::string> const& argsIn, cmExecutionStatus &)
 {
   this->VariableDocumentation = "Path to a library.";
   this->CMakePathName = "LIBRARY";

Source/cmFindLibraryCommand.h

@@ -43,7 +43,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmFindPackageCommand.cxx

@@ -231,7 +231,8 @@ const char* cmFindPackageCommand::GetFullDocumentation()
 }
 
 //----------------------------------------------------------------------------
-bool cmFindPackageCommand::InitialPass(std::vector<std::string> const& args)
+bool cmFindPackageCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 1)
     {

Source/cmFindPackageCommand.h

@@ -43,7 +43,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmFindPathCommand.cxx

@@ -70,7 +70,8 @@ const char* cmFindPathCommand::GetFullDocumentation()
 }
 
 // cmFindPathCommand
-bool cmFindPathCommand::InitialPass(std::vector<std::string> const& argsIn)
+bool cmFindPathCommand
+::InitialPass(std::vector<std::string> const& argsIn, cmExecutionStatus &)
 {
   this->VariableDocumentation = "Path to a file.";
   this->CMakePathName = "INCLUDE";

Source/cmFindPathCommand.h

@@ -43,7 +43,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmFindProgramCommand.cxx

@@ -51,7 +51,8 @@ cmFindProgramCommand::cmFindProgramCommand()
 }
 
 // cmFindProgramCommand
-bool cmFindProgramCommand::InitialPass(std::vector<std::string> const& argsIn)
+bool cmFindProgramCommand
+::InitialPass(std::vector<std::string> const& argsIn, cmExecutionStatus &)
 {
   this->VariableDocumentation = "Path to a program.";
   this->CMakePathName = "PROGRAM";

Source/cmFindProgramCommand.h

@@ -43,7 +43,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmForEachCommand.cxx

@@ -17,9 +17,10 @@
 #include "cmForEachCommand.h"
 
 bool cmForEachFunctionBlocker::
-IsFunctionBlocked(const cmListFileFunction& lff, cmMakefile &mf) 
+IsFunctionBlocked(const cmListFileFunction& lff, cmMakefile &mf,
+                  cmExecutionStatus &inStatus)
 {
-  // Prevent recusion and don't let this blobker block its own
+  // Prevent recusion and don't let this blocker block its own
   // commands.
   if (this->Executing)
     {
@@ -54,9 +55,26 @@ IsFunctionBlocked(const cmListFileFunction& lff, cmMakefile &mf)
         // set the variable to the loop value
         mf.AddDefinition(this->Args[0].c_str(),j->c_str());
         // Invoke all the functions that were collected in the block.
+        cmExecutionStatus status;
         for(unsigned int c = 0; c < this->Functions.size(); ++c)
           {
-          mf.ExecuteCommand(this->Functions[c]);
+          status.Clear();
+          mf.ExecuteCommand(this->Functions[c],status);
+          if (status.GetReturnInvoked())
+            {
+            inStatus.SetReturnInvoked(true);
+            // restore the variable to its prior value
+            mf.AddDefinition(this->Args[0].c_str(),oldDef.c_str());
+            mf.RemoveFunctionBlocker(lff);
+            return true;
+            }
+          if (status.GetBreakInvoked())
+            {
+            // restore the variable to its prior value
+            mf.AddDefinition(this->Args[0].c_str(),oldDef.c_str());
+            mf.RemoveFunctionBlocker(lff);
+            return true;
+            }
           }
         }
       // restore the variable to its prior value
@@ -105,7 +123,8 @@ ScopeEnded(cmMakefile &mf)
                        mf.GetCurrentDirectory());
 }
 
-bool cmForEachCommand::InitialPass(std::vector<std::string> const& args)
+bool cmForEachCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 1)
     {

Source/cmForEachCommand.h

@@ -32,7 +32,8 @@ public:
   cmForEachFunctionBlocker() {this->Executing = false; Depth = 0;}
   virtual ~cmForEachFunctionBlocker() {}
   virtual bool IsFunctionBlocked(const cmListFileFunction& lff,
-                                 cmMakefile &mf);
+                                 cmMakefile &mf,
+                                 cmExecutionStatus &);
   virtual bool ShouldRemove(const cmListFileFunction& lff, cmMakefile &mf);
   virtual void ScopeEnded(cmMakefile &mf);
   
@@ -63,7 +64,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmFunctionBlocker.h

@@ -18,6 +18,7 @@
 #define cmFunctionBlocker_h
 
 #include "cmStandardIncludes.h"
+#include "cmExecutionStatus.h"
 class cmMakefile;
 
 /** \class cmFunctionBlocker
@@ -32,7 +33,8 @@ public:
    * should a function be blocked
    */
   virtual bool IsFunctionBlocked(const cmListFileFunction& lff,
-                                 cmMakefile&mf) = 0;
+                                 cmMakefile&mf,
+                                 cmExecutionStatus &status) = 0;
 
   /**
    * should this function blocker be removed, useful when one function adds a

Source/cmFunctionCommand.cxx

@@ -48,9 +48,11 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InvokeInitialPass(const std::vector<cmListFileArgument>& args);
+  virtual bool InvokeInitialPass(const std::vector<cmListFileArgument>& args,
+                                 cmExecutionStatus &);
 
-  virtual bool InitialPass(std::vector<std::string> const&) { return false; };
+  virtual bool InitialPass(std::vector<std::string> const&,
+                           cmExecutionStatus &) { return false; };
 
   /**
    * The name of the command as specified in CMakeList.txt.
@@ -83,7 +85,8 @@ public:
 
 
 bool cmFunctionHelperCommand::InvokeInitialPass
-(const std::vector<cmListFileArgument>& args)
+(const std::vector<cmListFileArgument>& args,
+ cmExecutionStatus &)
 {
   // Expand the argument list to the function.
   std::vector<std::string> expandedArgs;
@@ -153,7 +156,8 @@ bool cmFunctionHelperCommand::InvokeInitialPass
   // for each function
   for(unsigned int c = 0; c < this->Functions.size(); ++c)
     {
-    if (!this->Makefile->ExecuteCommand(this->Functions[c]))
+    cmExecutionStatus status;
+    if (!this->Makefile->ExecuteCommand(this->Functions[c],status))
       {
       cmOStringStream error;
       error << "Error in cmake code at\n"
@@ -167,6 +171,11 @@ bool cmFunctionHelperCommand::InvokeInitialPass
       this->Makefile->PopScope();
       return false;
       }
+    if (status.GetReturnInvoked())
+      {
+      this->Makefile->PopScope();
+      return true;
+      }
     }
 
   // pop scope on the makefile
@@ -175,7 +184,8 @@ bool cmFunctionHelperCommand::InvokeInitialPass
 }
 
 bool cmFunctionFunctionBlocker::
-IsFunctionBlocked(const cmListFileFunction& lff, cmMakefile &mf)
+IsFunctionBlocked(const cmListFileFunction& lff, cmMakefile &mf,
+                  cmExecutionStatus &)
 {
   // record commands until we hit the ENDFUNCTION
   // at the ENDFUNCTION call we shift gears and start looking for invocations
@@ -266,7 +276,8 @@ ScopeEnded(cmMakefile &mf)
     this->Args[0].c_str());
 }
 
-bool cmFunctionCommand::InitialPass(std::vector<std::string> const& args)
+bool cmFunctionCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 1)
     {

Source/cmFunctionCommand.h

@@ -30,7 +30,9 @@ class cmFunctionFunctionBlocker : public cmFunctionBlocker
 public:
   cmFunctionFunctionBlocker() {this->Depth=0;}
   virtual ~cmFunctionFunctionBlocker() {}
-  virtual bool IsFunctionBlocked(const cmListFileFunction&, cmMakefile &mf);
+  virtual bool IsFunctionBlocked(const cmListFileFunction&, 
+                                 cmMakefile &mf,
+                                 cmExecutionStatus &);
   virtual bool ShouldRemove(const cmListFileFunction&, cmMakefile &mf);
   virtual void ScopeEnded(cmMakefile &mf);
   
@@ -59,7 +61,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmGetCMakePropertyCommand.cxx

@@ -19,8 +19,8 @@
 #include "cmake.h"
 
 // cmGetCMakePropertyCommand
-bool cmGetCMakePropertyCommand::InitialPass(
-  std::vector<std::string> const& args)
+bool cmGetCMakePropertyCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 2 )
     {

Source/cmGetCMakePropertyCommand.h

@@ -31,7 +31,8 @@ public:
    * This is called when the command is first encountered in
    * the input file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmGetDirectoryPropertyCommand.cxx

@@ -19,8 +19,8 @@
 #include "cmake.h"
 
 // cmGetDirectoryPropertyCommand
-bool cmGetDirectoryPropertyCommand::InitialPass(
-  std::vector<std::string> const& args)
+bool cmGetDirectoryPropertyCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 2 )
     {

Source/cmGetDirectoryPropertyCommand.h

@@ -31,7 +31,8 @@ public:
    * This is called when the command is first encountered in
    * the input file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmGetFilenameComponentCommand.cxx

@@ -19,7 +19,7 @@
 
 // cmGetFilenameComponentCommand
 bool cmGetFilenameComponentCommand
-::InitialPass(std::vector<std::string> const& args)
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 3)
     {

Source/cmGetFilenameComponentCommand.h

@@ -40,7 +40,8 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const& args);
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
 
   /**
    * This determines if the command is invoked when in script mode.

Source/cmGetPropertyCommand.cxx

@@ -27,7 +27,8 @@ cmGetPropertyCommand::cmGetPropertyCommand()
 }
 
 //----------------------------------------------------------------------------
-bool cmGetPropertyCommand::InitialPass(std::vector<std::string> const& args)
+bool cmGetPropertyCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
   if(args.size() < 3 )
     {